filer.templatetags.filer_tags: 53 total statements, 0.0% covered

Generated: Wed 2013-03-13 10:33 CET

Source file: /media/Envs/Envs/filer-gallery/lib/python2.7/site-packages/filer/templatetags/filer_tags.py

Stats: 0 executed, 51 missed, 2 excluded, 49 ignored

1. #-*- coding: utf-8 -*-
2. from django.template import Library
3. import math
5. register = Library()
7. # The templatetag below is copied from sorl.thumbnail
9. filesize_formats = ['k', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y']
10. filesize_long_formats = {
11. 'k': 'kilo', 'M': 'mega', 'G': 'giga', 'T': 'tera', 'P': 'peta',
12. 'E': 'exa', 'Z': 'zetta', 'Y': 'yotta',
13. }
16. def filesize(bytes, format='auto1024'):
17. """
18. Returns the number of bytes in either the nearest unit or a specific unit
19. (depending on the chosen format method).
21. Acceptable formats are:
23. auto1024, auto1000
24. convert to the nearest unit, appending the abbreviated unit name to the
25. string (e.g. '2 KiB' or '2 kB').
26. auto1024 is the default format.
27. auto1024long, auto1000long
28. convert to the nearest multiple of 1024 or 1000, appending the correctly
29. pluralized unit name to the string (e.g. '2 kibibytes' or '2 kilobytes').
30. kB, MB, GB, TB, PB, EB, ZB or YB
31. convert to the exact unit (using multiples of 1000).
32. KiB, MiB, GiB, TiB, PiB, EiB, ZiB or YiB
33. convert to the exact unit (using multiples of 1024).
35. The auto1024 and auto1000 formats return a string, appending the correct
36. unit to the value. All other formats return the floating point value.
38. If an invalid format is specified, the bytes are returned unchanged.
39. """
40. format_len = len(format)
41. # Check for valid format
42. if format_len in (2, 3):
43. if format_len == 3 and format[0] == 'K':
44. format = 'k%s' % format[1:]
45. if not format[-1] == 'B' or format[0] not in filesize_formats:
46. return bytes
47. if format_len == 3 and format[1] != 'i':
48. return bytes
49. elif format not in ('auto1024', 'auto1000',
50. 'auto1024long', 'auto1000long'):
51. return bytes
52. # Check for valid bytes
53. try:
54. bytes = long(bytes)
55. except (ValueError, TypeError):
56. return bytes
58. # Auto multiple of 1000 or 1024
59. if format.startswith('auto'):
60. if format[4:8] == '1000':
61. base = 1000
62. else:
63. base = 1024
64. logarithm = bytes and math.log(bytes, base) or 0
65. index = min(int(logarithm) - 1, len(filesize_formats) - 1)
66. if index >= 0:
67. if base == 1000:
68. bytes = bytes and bytes / math.pow(1000, index + 1)
69. else:
70. bytes = bytes >> (10 * (index))
71. bytes = bytes and bytes / 1024.0
72. unit = filesize_formats[index]
73. else:
74. # Change the base to 1000 so the unit will just output 'B' not 'iB'
75. base = 1000
76. unit = ''
77. if bytes >= 10 or ('%.1f' % bytes).endswith('.0'):
78. bytes = '%.0f' % bytes
79. else:
80. bytes = '%.1f' % bytes
81. if format.endswith('long'):
82. unit = filesize_long_formats.get(unit, '')
83. if base == 1024 and unit:
84. unit = '%sbi' % unit[:2]
85. unit = '%sbyte%s' % (unit, bytes != '1' and 's' or '')
86. else:
87. unit = '%s%s' % (base == 1024 and unit.upper() or unit,
88. base == 1024 and 'iB' or 'B')
90. return '%s %s' % (bytes, unit)
92. if bytes == 0:
93. return bytes
94. base = filesize_formats.index(format[0]) + 1
95. # Exact multiple of 1000
96. if format_len == 2:
97. return bytes / (1000.0 ** base)
98. # Exact multiple of 1024
99. elif format_len == 3:
100. bytes = bytes >> (10 * (base - 1))
101. return bytes / 1024.0
102. register.filter(filesize)